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x86: move kstat_irqs from kstat to irq_desc

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based on Eric's patch ...

together mold it with dyn_array for irq_desc, will allcate kstat_irqs for
nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already.

v2: make sure system without generic_hardirqs works they don't have irq_desc
v3: fix merging
v4: [mingo@elte.hu] fix typo

[ mingo@elte.hu ] irq: build fix

fix:

 arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow':
 arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs'

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-08-19 20:50:09 -07:00
committed by Ingo Molnar
parent 3060d6fe28
commit 7f95ec9e4c
11 changed files with 113 additions and 63 deletions
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2
arch/x86/xen/spinlock.c
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@@ -241,7 +241,7 @@ static noinline int xen_spin_lock_slow(struct raw_spinlock *lock, bool irq_enabl
ADD_STATS(taken_slow_spurious, !xen_test_irq_pending(irq));
} while (!xen_test_irq_pending(irq)); /* check for spurious wakeups */
kstat_this_cpu.irqs[irq]++;
kstat_irqs_this_cpu(irq_to_desc(irq))++;
out:
raw_local_irq_restore(flags);